Republican President-elect Donald Trump's transition team floated two candidates for the post of secretary of state in a future Trump administration on Monday: former New York City Mayor Rudy Giuliani and diplomat John Bolton.

While some media reports named Bolton as the favored candidate earlier in the day, by the evening, others named Giuliani as the presumptive favorite.

Source says John Bolton is close to being named Secretary of State, Corker still a remote possibility, Gingrich is out

If Trump selects John Bolton as his Secretary of State, that's a huge middle finger to the rest of the world and proof that wars are coming.

The one man in America who still thinks the Iraq War was a good idea may soon be Secretary of State. https://t.co/UObmESzDHt

Former President George W. Bush issued a recess appointment of Bolton in 2004 as ambassador to the U.N., despite Bolton's opposition to that body. But the diplomat withdrew from Senate consideration for a formal appointment in 2006 under heavy criticism.

Bolton's appointment as a senior member of the Trump administration would suggest the real estate mogul is embracing the Republican Party's neoconservative bent, despite Trump campaigning on a platform of having opposed the Iraq War (which he did not) and military restraint relative to prior administrations, undermined somewhat by his calls to bomb terrorists' families.

Giuliani has no international diplomatic experience, outside of welcoming foreign dignitaries to the city of New York, and has primarily distinguished himself this campaign season by launching ill-founded attacks on Democratic nominee Hillary Clinton's health, intelligence and status as the "founder of ISIS."

At a campaign rally in August, Giuliani trolled Trump's opponents by wearing a hat labeled "Make Mexico Great Again Also," a nod to the campaign's signature slogan and a jab at Mexicans opposed to the candidate's rhetoric about their country.

In case you can't make out the small type: yes, Giuliani's hat reads "MAKE MEXICO GREAT AGAIN ALSO

Giuliani's primary experience aside from the mayoralty has been as a prosecutor, both as an associate U.S. attorney general and district attorney in New York. As mayor, he was associated with tough-on-crime policies (most famously "stop and frisk," which a federal court ruled unconstitutional in 2013) and according to the Washington Post's Radley Balko, "prosecutorial excess" and a vindictive campaign of intimidation against local political opponents.

According to the Wall Street Journal, transition team insiders say President-elect Trump's final decision could take weeks.